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<2-Ethoxy-phenyl>-<4-ethoxy-phenyl>-sulfid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

20057-99-2

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20057-99-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20057-99-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,0,5 and 7 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 20057-99:
(7*2)+(6*0)+(5*0)+(4*5)+(3*7)+(2*9)+(1*9)=82
82 % 10 = 2
So 20057-99-2 is a valid CAS Registry Number.

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